The clouds over the land now rose like mountains, and the coast was only a long green line with the gray blue hills behind it. The water was a dark blue now, so dark that it was almost purple.

一个领导者的真正考验不在于他们的指挥能力，而在于他们的激励能力。

全息原理表明，空间区域的信息内容可以编码在其边界上，就像全息图一样。